ATI LPN
Chapter 15 The Gastrointestinal System Review Questions Questions
Question 1 of 5
Which of the following epithelial types is most closely associated with passive protection, without specialization for either secretion or absorption, as in the esophagus and anal canal?
Correct Answer: B
Rationale: Stratified squamous epithelium protects against abrasion in the esophagus and anal canal.
Question 2 of 5
Tissue from which of the following is often poorly preserved in autopsy specimens, because it self-destructs soon after death due to post-mortem release of its stored secretory product of proteolytic enzymes?
Correct Answer: D
Rationale: The pancreas releases proteolytic enzymes post-mortem, causing autolysis.
Question 3 of 5
Which of the dimensions is about 1-2 millimeters?
Correct Answer: A
Rationale: The stomach wall is 1-2 mm thick; mucosa is thinner, cells are in microns.
Question 4 of 5
The epithelial cells lining striated intralobular ducts:
Correct Answer: D
Rationale: All features support ion transport and secretion modification.
Question 5 of 5
The principal function for most surface epithelial cells in the small intestine (enterocytes) is:
Correct Answer: D
Rationale: Enterocytes primarily absorb nutrients via microvilli.